CAJ | 학술논문

经有机难溶盐包膜后的黄铁矿矿石接菌下间歇循环淋洗一年后其循环收集液中SO2-4含量点供试样品中总SO2-4量的0.16％，较对照的下降了97％，pH从初始6.82下降至5.48，但对照pH却从初始的7.57下降至2.35.矿石样品经扫描电子显微镜显示：包膜的矿石样品表面仍呈光洁状，而对照的表面布满细小洞穴.清楚指出：笔者首次提出的有机盐膜能有效地抑制T.F菌对黄铁矿的氧化作用.
경유궤난용염포막후적황철광광석접균하간헐순배림세일년후기순배수집액중SO2-4함량점공시양품중총SO2-4량적0.16％，교대조적하강료97％，pH종초시6.82하강지5.48，단대조pH각종초시적7.57하강지2.35.광석양품경소묘전자현미경현시：포막적광석양품표면잉정광길상，이대조적표면포만세소동혈.청초지출：필자수차제출적유궤염막능유효지억제T.F균대황철광적양화작용.
The suppression of pyrite biological oxidation by the film of organic salt on the pyrite surface was conducted with the simulation of column leaching at natural room temperatures. The results showed that the amount of SOO42- in the leachate of the coated pyrite accounted for 0.16% of the total SO2-4 in 250 g of the samples after leaching for one year at intervals and circularly, decreased by 97%as comparing with that of contriol. The pH dropped from 6.82 at the beginning to 5.48, while from 7.57 to 2.35 for control at the same condition. The surface of the coated pyrite appeared smoothly ,but many small hololws were dotted on the surface of pyrite for control when observed with SEM (scan electron microscope). This clearly indicated that the film of organic salt can control the pyrite oxidation caused by T. F( thiobacillus ferrooxidans)effectively.